Parasitization of fifth instar tasar silkworm, Antheraea mylitta, by the uzi fly, Blepharipa zebina; a host–parasitoid interaction and its effect on host’s nutritional parameters and parasitoid development

The uzi fly, Blepharipa zebina, is a well-known larval endoparasitoid of the tropical tasar silkworm, Antheraea mylitta. The present study dealt with the effect of the number of maggots developing per host on host nutritional parameters, parasitoid development and reproduction. Nutritional indices f...

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Bibliographic Details
Published in:Journal of invertebrate pathology 2005, Vol.88 (1), p.70-78
Main Authors: Rath, S.S., Sinha, B.R.R.P.
Format: Article
Language:English
Subjects:
Animal productions
Animals
Antheraea mylitta
Biological and medical sciences
biological development
Blepharipa
Blepharipa zebina
Bombyx
Bombyx mori
cocoons
digestibility
fecundity
food conversion
Fundamental and applied biological sciences. Psychology
Host-Parasite Interactions
host-parasite relationships
Host–parasitoid interaction
insect growth
insect nutrition
insect reproduction
Insecta
Invertebrates
Larva
Moths - parasitology
Nutritional parameters
Nutritional Physiological Phenomena
parasitism
parasitoid burden
Parasitoid development
parasitoids
Sericulture
silk production
Terrestrial animal productions
Zebina
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Summary:The uzi fly, Blepharipa zebina, is a well-known larval endoparasitoid of the tropical tasar silkworm, Antheraea mylitta. The present study dealt with the effect of the number of maggots developing per host on host nutritional parameters, parasitoid development and reproduction. Nutritional indices for ingestion, digestion, approximate digestibility, relative consumption rate, relative growth rate, and gain in body weight declined significantly with the increase in parasitoid burden, but the efficiency of conversion of digested food recorded a significant increase. The efficiency of conversion of ingested food remained little affected. The developmental period was significantly extended in larvae parasitized with 5 and 10 maggots per larva (mpl). Cocoon shell weight decreased by 27–63.5% in parasitized groups (1, 2, and 5 mpl) while larvae parasitized with 10 mpl could not spin cocoons. The maggot development period, recovery percentage, and fecundity of the uzi fly declined significantly with the increase in number of maggots developing per host.
ISSN:0022-2011
1096-0805
DOI:10.1016/j.jip.2004.09.006